<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            padding: 0;
            margin: 0;
        }
        .bor {
            width: "100%";
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-direction: column;
        }
        .boe {
            height: 30px;
            width: 200px;
            border-radius: 15px;
            padding-left: 10px;
            margin-top: 20px;
        }
    </style>
</head>
<body>
    <div class="bor">
        <input type="text" placeholder="请输入用户名" class="boe">
        <input type="password" placeholder="请输入密码" class="boe">
        <div>
            <input type="radio" name="sex" class="boe"><label for="">男</label>
            <input type="radio" name="sex" class="boe"><label for="">女</label>
        </div>
        <div>
            <input type="checkbox" class="boe"><label>鸿蒙</label>
            <input type="checkbox" class="boe"><label>安卓</label>
            <input type="checkbox" class="boe"><label>ios</label>
        </div>



 




    </div>
   
</body>
</html>